<template>
    <h4>{{ title }}</h4>
    <p>1.1.1 创造一个整个应用程序实例的概念：new Vue({render: h => h(App)}).mount('#app') => createApp(App).mount('#app')</p>
    <p>1.1.2 Vue.prototype 替换为 config.globalProperties：Vue.prototype.$http => app.config.globalProperpies.$http</p>
    <p>1.1.3 安装插件：Vue.use(VueRouter) => app.use(VueRouter)</p>
    <p>1.1.4 Vue.extend 移除</p>
</template>

<script>
export default {
    props: {
        title: {
            type: String,
            default: ''
        },
    },
}
</script>

<style lang="scss" scoped>
</style>